CN1639016A - Metallic beverage can end with improved chuck wall and countersink - Google Patents
Metallic beverage can end with improved chuck wall and countersink Download PDFInfo
- Publication number
- CN1639016A CN1639016A CNA038044994A CN03804499A CN1639016A CN 1639016 A CN1639016 A CN 1639016A CN A038044994 A CNA038044994 A CN A038044994A CN 03804499 A CN03804499 A CN 03804499A CN 1639016 A CN1639016 A CN 1639016A
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- Prior art keywords
- wall
- inch
- chuck wall
- radius
- curvature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/30—Folding the circumferential seam
- B21D51/32—Folding the circumferential seam by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
- B65D7/34—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls
- B65D7/36—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls formed by rolling, or by rolling and pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/0058—Other details of container end panel
- B65D2517/0059—General cross-sectional shape of container end panel
- B65D2517/0061—U-shaped
- B65D2517/0062—U-shaped and provided with an additional U-shaped peripheral channel
Abstract
A beverage can end (2) has a chuck wall (6), inner panel (16) and central panel (14). A concave arch on the chuck wall (6) with a radius of curvature between about 0.015 inches and 0.080 inches.
Description
Technical field
The present invention relates generally to container and container end closures, and more especially, relates to being suitable for and the interconnective metallic beverage can end closure member of beverage can body.
Background technology
Container and especially metal beverage container are typically by making the interconnective mode of the main body of beverage can end closure and drinking container.In some applications, end closure can the two all interconnects with the top side of can body and bottom side.Yet more frequently, beverage can end closure only interconnects with the top of beverage can body, this beverage can body be by the flat blank material of a slice for example aluminium by drawing and ironed making.Since potential internal high pressure that soda produced, beverage can body and beverage can end closure all typically requirement can support serious and permanent distortion can not take place above the internal pressure of 90psi.Further, depend on that various environmental conditionss are for example hot, charge too many, high CO
2Internal pressure in capacity and the vibrations, representative type beverage can surpass the 100psi several times.
Therefore, beverage can body and end closure must be enough durable keeping out high internal pressure, but it must use as thin as a wafer again and durable material for example aluminium make reducing the overall cost of manufacturing process, and reduce the weight of finished product.Therefore, exist active demand to a kind of so durable beverage can end closure, this closure member can bear in high internal pressure that soda produces and the delivery process its externally applied forces, and this in addition closure member also should be made according to the geometric construction that can reduce materials demand by durable, lightweight and metallic material as thin as a wafer.Once had in the past and make great efforts to provide beverage can end to realize saving in material and to strengthen the attempt of intensity with unique geometric configuration.Licensing to the US Patent 6 that Crown Cork and Seal technology company name is called " Can End andMethod for Fixing the same to a Can Body; jar end and the method that is fixed to can body ", 065, be limited with the example of a this beverage can end in 634 (hereinafter be called for short ' 634 patents), and this example is used as prior art and describes in Fig. 2.In the described beverage can end of ' 634 patents, provide one towards countersink with the intilted chuck wall of angle between about 40 ° and 60 °.The beverage can end of describing in ' 634 patents does not use industrial known standard double-seam technology.
Other patent attempt increases the intensity and the saving in material of container end closures by the geometric configuration of improving the countersink zone.The example of these patents is to license to Nguyen and other people US Patent 5,685,189 and 6,460,723, being incorporated herein by refere all of these examples.Be to have described in the U.S. Patent application in 10/107,941 the examination to be used for the manufacturing process of production various embodiments of the invention at another application number of submitting on March 27th, 2002, and the whole of this application also further are incorporated herein by refere.
Below open a kind of being suitable for and the interconnective improved container end closures of container body described, and this container end closures has improved countersink, chuck wall geometry and the unit depth of saving in material cost significantly, and it can also bear sizable internal pressure in addition.
Summary of the invention
Therefore, one aspect of the present invention provides a kind of container end closures, this container end closures can be born the sizable internal pressure near 100psi, yet but can save 3% to 10% of material requested cost when making typical beverages jar end closure.Although the present invention described herein is applied to be used for holding on the drinking container and beverage end closure of beer, soda and other soda usually, those skilled in the art should understand that also the present invention can also be used for the container and the container end closures of any type.In one embodiment of the invention, the chuck wall of " bow portion " and the countersink degree of depth of minimizing realize these features to have spill by providing, wherein the countersink height that is set at the distance center plate is not more than about 0.095 inch place, and more preferably is not more than about 0.090 inch.
In another aspect of the present invention, a kind of container end closures that adopts traditional manufacturing equipment to make is provided, thereby has generally no longer needed to make the new installation of the required costliness of beverage can container end closures.Therefore, be that existing and known manufacturing equipment and technology can be used for being used for fast and effectively beginning the production of improved beverage can container end closures in jar factory at existing originating firm.
Another aspect of the present invention provides a kind of end closure of chuck wall of the non-linear shape with " arc ".As using in the prior art, term " chuck wall " is commonly referred to as the part that is arranged in the end closure between countersink and the annular end wall (perhaps forming the peripheral curled part or the peripheral flange of seam with can body) and contacts or engage with chuck in the seam process, as shown in Fig. 7 of Crown ' 634 patents.Unlike the prior art, employed seam chuck does not need to contact or engage with whole seam chuck wall in the seam process when lid seam of the present invention.The junction of chuck clearly illustrates in the accompanying drawings and will specifically describe below in the present invention.
In another aspect of the present invention, a kind of method that forms beverage can end closure is provided, wherein a jar end closure is provided with the countersink that radius is not more than 0.015 inch, and this countersink is usually located at the distance center plate and is not more than about 0.095 inch degree of depth.Preferably, center plate exceeds than the foot of countersink and is not more than about 0.090 inch.
More especially, this manufacture method generally includes two processes that comprise multistep and single step.Multistep is produced " prefabricated shell ", is shifted into another operation after this prefabricated hull shape becomes and is shaped to get to the end.In this process, " prefabricated shell " is booked between two relative instruments, at first produces the effect that clamps like this before plate and countersink formation.The shaping of countersink realizes with tractive by compression between concavo-convex set of tools.Single step process is produced the compacting tumbler when the convex instrument enters the spill instrument.Among the spill instrument is " plate punching press " instrument, and this plate stamping tool is under the high pressure and clamps tumbler against the convex punching in entering and leave spill instrument process.When the convex instrument has formed plate and countersink when the spill instrument is withdrawn." plate punching press " instrument is along with the convex instrument." plate punching press " instrument has the profile of plate and countersink form geometry within its.This action can form the plate that cup bottom is rolled around its profile, and countersink is formed in the gap between the plate stamping tool of convex instrument and compression countersink bottom.
Another aspect of the present invention provides a kind of beverage can end closure, and this beverage can end closure is come the saving in material cost by size that reduces blank material and/or the more thin material that use has improved aluminium alloy capability.Therefore, because the minimizing of blank material and/or the improved aluminum alloy attribute that it provided, so the integraty of beverage can end closure and intensity do not suffer damage, and material cost has also obtained reducing significantly.
A further aspect of the present invention provides a kind of beverage can container end closures, and this beverage can container end closures comprises the have first curvature radius upper chuck wall of " Rc1 " and the lower chuck wall with second curvature radius " Rc ".And central chuck wall portion has another radius of curvature " Rc2 ", and this radius of curvature limits the spill " bow portion " of the outside orientation between upper chuck wall and lower chuck wall.Select as another kind, upper and lower chuck wall can be " curve " basically, and thereby has a kind of so promptly linear moderate angle of bend of straight line that is similar to.In addition, the unit depth size between the foot of the topmost of annular end wall and countersink is between about 0.215 and 0.280 inch in one embodiment, and more preferably is about 0.250-0.260 inch.In addition, in one aspect of the invention, inner panel wall can have nonlinear radius of curvature in addition, and this radius of curvature is preferably about 0.050 inch.
Another further aspect of the present invention is the distance that has reduced between countersink inner panel wall and the outer wooden partition, thereby has saved material cost but strengthened the intensity of end closure.Therefore, in one embodiment of the invention, the distance between the inside and outside wooden partition and more preferably is about 0.052 inch between about 0.045 and 0.055 inch.
The present invention another aspect again provides a kind of end closure, and this end closure has that strength-to-density ratio is higher and can bear the chuck wall of big internal pressure mutually with the conventional container end closure.Therefore, a kind of end closure is provided in one embodiment of the invention, this end closure is provided with the chuck wall with protruding spill bow portion, and in one embodiment in that terminal double-seam should bow portion before the container body be positioned at place in the middle of about between countersink and the annular end wall with jar.Preferably, the central chuck wall arch radius of curvature is between about 0.020 and 0.080 inch, and more preferably less than about 0.040 inch, and more preferably between the 0.020-0.025 inch.In one embodiment, it is linear that upper chuck wall and lower chuck wall can be essentially, and a progressive radius of curvature is perhaps only arranged.
Therefore, in one aspect of the invention, provide a kind of and be suitable for and the interconnective can end closure of container body, and comprised: be suitable for and the interconnective annular end wall of described container body sidewall; Chuck wall with described annular end wall overall interconnect, and this chuck wall extends downwards with the about at least 8 angle θ that spend that begin to measure from perpendicular, described chuck wall further comprises the bow portion that stretches out, and this bow portion that stretches out has the radius of curvature of center-point between about 0.020 and 0.080 inch under the described annular end wall; With described chuck wall lower interconnect and radius of curvature less than about 0.015 inch countersink; With the inner panel wall of described countersink interconnection, and this inner panel wall extends upward with about 0 degree that begins to measure from vertical substantially plane and the angle φ between 15 degree; With the center plate of the upper end of described inner panel wall interconnection, and this center plate is positioned at about at least 0.080 inch place, described countersink foot top.
Description of drawings
Fig. 1 is standard 202 diameter beverage can end closure at double-seam before the beverage can body and cross sectional front elevation afterwards;
Fig. 2 be the beverage can of another prior art at double-seam before the beverage can body and cross sectional front elevation afterwards;
Fig. 2 A be on one embodiment of the present of invention figure reversing of position with the cross sectional front elevation of two prior art beverage can ends distinguishing its difference;
Fig. 3 is an one embodiment of the invention at double-seam before the beverage can body and cross sectional front elevation afterwards;
Fig. 3 A is the cross sectional front elevation of prior art beverage can, and the figure shows before the double-seam and the location of seam chuck afterwards.
Fig. 4 is the cross sectional front elevation of the embodiment of the invention shown in Fig. 3;
Fig. 4 A is the cross sectional front elevation of embodiment among Fig. 4, and has further marked size;
Fig. 4 B is the cross sectional front elevation of alternate embodiment of the present invention;
Fig. 4 C is the cross sectional front elevation of alternate embodiment of the present invention;
Fig. 5 is the cross sectional front elevation of alternate embodiment of the present invention;
Fig. 5 A is the cross sectional front elevation of embodiment among Fig. 5, and has further marked size;
Fig. 5 B is the embodiment shown in Fig. 5 and Fig. 5 A at double-seam before the beverage can body and cross sectional front elevation afterwards;
Fig. 6 is the cross sectional front elevation of alternate embodiment of the present invention;
Fig. 6 A is the cross sectional front elevation of embodiment among Fig. 6, and has further marked size;
Fig. 6 B is the embodiment shown in Fig. 6 and Fig. 6 A at double-seam before the beverage can body and cross sectional front elevation afterwards;
Fig. 7 is the cross sectional front elevation of alternate embodiment of the present invention;
Fig. 7 A is the cross sectional front elevation of embodiment among Fig. 6, and has further marked size;
Fig. 7 B is the embodiment shown in Fig. 7 and Fig. 7 A at double-seam before the beverage can body and cross sectional drawing afterwards;
Fig. 8 is the cross sectional drawing of one embodiment of the invention before double-seam, and has marked the certain radius of curvature of chuck wall arch;
Fig. 8 A is the cross sectional drawing of the embodiment shown in Fig. 8 after double-seam, and has gone out to be positioned at the length of the upper chuck wall of bow portion top according to the telltale mark of the length of double-seam and seam chuck;
Fig. 9 is the cross sectional drawing of one embodiment of the invention before double-seam, and has marked the certain radius of curvature of chuck wall arch;
Fig. 9 A is the cross sectional drawing of the embodiment shown in Fig. 8 after double-seam, and has gone out to be positioned at the length of the upper chuck wall of bow portion top according to the telltale mark of the length of double-seam and seam chuck;
Figure 10 is the cross sectional drawing of one embodiment of the invention before double-seam, and has marked the certain radius of curvature of chuck wall arch; And
Figure 10 A is the cross sectional drawing of the embodiment shown in Fig. 8 after double-seam, and has gone out to be positioned at the length of the upper chuck wall of bow portion top according to the telltale mark of the length of double-seam and seam chuck.
The specific embodiment
With reference now to Fig. 1-7B,, wherein provides the beverage can end (Fig. 1-2 A) of prior art and the various embodiments of the invention (cross sectional front elevation of Fig. 3-7B).More especially, metallic beverage can described herein 2 is formed by annular end wall 4, chuck wall 6, countersink 12, center plate 14 and with the inner panel wall 16 that center plate 14 is interconnected to countersink 12 usually.Chuck wall 6 can comprise upper chuck wall 8 and lower chuck wall 10 in addition, and they can have first curvature radius Rc1 and second curvature radius Rc2 respectively in certain embodiments.In certain embodiments, inner panel wall 16 can comprise inner panel wall upper end 18 and inner panel wall lower end 20 in addition.In addition, the top of annular end wall 4 is limited by the part that typically is called hat 22 in beverage can art.
Chuck wall angle θ here
1Be defined as the angle that departs from from perpendicular when countersink 12 extends when chuck wall 6 downwards.In various embodiment with upper chuck wall 8 and lower chuck wall 10, lower chuck wall angle θ can also be arranged
2, this angle is defined the irrelevance that uses to from the imaginary perpendicular of lower chuck wall 10 here.Therefore, in some embodiments of the invention, may have upper chuck wall 8, lower chuck wall 10 and corresponding upper chuck wall angle θ
1With lower chuck wall angle θ
2
Select as another kind, under the situation that upper chuck wall 8 and lower chuck wall 10 are made up of non-linear components basically, the first curvature radius Rc1 relevant with upper chuck wall 8, and the second curvature radius Rc2 that is correlated with of lower chuck wall can also be arranged.Significantly chuck wall arch 30 has radius of curvature, and this radius of curvature is restricted to and is depicted as usually in the accompanying drawings " Rc " herein.As use herein, it is the direction of center plate 14 middle bodies that term " inwardly " is being represented towards end closure inside, and term " outwards " to represent towards the external margin of container body be the direction of annular end wall 4 or double-seam 32.
In addition, inner panel wall 16 typically is interconnected to center plate 14 with the foot of countersink 12, and typically presses the angle φ shown in the accompanying drawing
1Orientation, and this angle is being represented the angle of extending from imaginary perpendicular further.In certain embodiments, following inner panel wall angle φ can also be arranged in addition
2, this angle limits the angle of extending from the imaginary perpendicular of following inner panel wall.
With reference now to Fig. 1,, the cross sectional front elevation that the 202 diameter beverage can ends that wherein show prior art are located about beverage can body before double-seam and after the double-seam.As the left-hand part institute mark of this figure, beverage can end 2 is to be provided with like this: annular end wall 4 and the seam chuck 28 that places on the beverage can 26, use at manufacturing process are along chuck wall 16 location and extend downwardly into countersink 12.Shown in the accompanying drawing on Fig. 1 right side, beverage can end 2 has been finished double-seam now, and wherein the top of annular wall 4 and beverage can interconnects to realize the sealing joints between beverage can end 2 and the beverage can body 24.It is additionally noted that in representative type 202 diameter beverage can ends, chuck wall 6 is only with a moderate angle, promptly 2-8 ° about vertical substantially beverage can orientation, and double-seam have later between 1-6 ° inwardly towards angle.
With reference now to Fig. 2,, wherein shows the beverage can end of the prior art of in ' 634 patents, describing, and further introduce herein as a reference.More especially, the beverage can end before the left-hand part of this figure shows double-seam, and the right hand portion beverage can end 2 of this figure double-seam on beverage can 26.In the example of this prior art, it is linear that chuck wall is essentially, yet have the obvious angle between about 40 ° and 60 ° that extend internally from vertical substantially beverage can 26.And countersink 12 is interconnected to inner panel wall 16, and this inner panel wall 16 is linear substantially and extends up to point with center plate 14 interconnection substantially.Owing to extend to the obvious chuck wall angle of annular end wall 4, it is the extreme failure-free that such structure also is not proved in the high speed manufacturing process but unfortunately.And, should be noted that in double-seam process seam chuck 28 contacts with chuck wall 6 along the whole length of the chuck wall 6 between countersink 12 and the annular end wall.
With reference now to Fig. 2 A,, wherein shows disclosed beverage can end and one embodiment of the present of invention in the cross sectional front elevation, ' 634 patents of standard 202 beverage can ends, for their reversing of position on figure each other of purpose of reference.
In this width of cloth accompanying drawing, the difference of the upper chuck wall of these three kinds of ends is easy to find out.More especially, inwardly depart from the angle between the very big 40-60 degree chuck wall upper end of the end of describing in ' 634 patents, this makes and has produced bigger separation between upper chuck wall and the beverage can body neck, and the beverage can that the situation in this bigger 202 jars of ends of separation and standard is described with various embodiments of the invention mutually on the contrary is consistent.State as top, this difference will go wrong terminal 2 double-seams of jar to can body neck 26 time, wherein in seam ' 634 patents, need more movement of metallic during disclosed beverage can end, 202 jars of this way and standards terminal obtainable failure-free live through the double-seam that the time tests and run in the opposite direction.Can find out from Fig. 2 A, what the present invention used is 202 jars of upper chuck wall angles that end is similar of geometric construction and tradition, therefore do not need to carry out the transformation of equipment, and eliminated the prior art beverage can intrinsic double-seam problem, what this prior art beverage can used is inwardly departed from a upper chuck wall 8 than wide-angle from imaginary perpendicular.
With reference now to Fig. 3,, show one embodiment of the present of invention here, be the beverage can end 2 that before double-seam, is provided with shown in the left-hand side of Fig. 3 wherein, shown in the right-hand side of this figure is the later beverage can end of double-seam 2.As Fig. 3 institute mark, the bowed shape that chuck wall 10 has upwards and extends internally, and upper chuck wall has towards the outward extending spill bow of beverage can 26 portion 30, and this spill bow portion 30 has specific radius of curvature R c.In addition, should also be noted that seam chuck 28 only with countersink 12 and ring-shaped end wall 4 between the specific part of end closure contact.As shown in the figure, double-seam be positioned in the core of cantle portion 30 the double-seam foot below, as can be seen this help to stop filling container and double-seam to end closure leak later on may.10 places in the figure show the lower chuck wall with independent radius of curvature R c2.As among this figure shown in further, the foot of lower chuck wall 10 is interconnected to countersink 12, and this countersink 12 further is interconnected to inner panel wall 16, and this inner panel wall 16 extends upward and be interconnected to center plate 14.Shown as this embodiment of the present invention, inner panel wall 16 can have non-linear shape in addition.
Fig. 3 A is that standard 202 drinking container of prior art are before double-seam and cross sectional front elevation afterwards.These accompanying drawings be provided to show before double-seam and afterwards seam chuck 28 about the location of end closure 2.
With reference now to Fig. 4 and 4A,, embodiment shown here with Fig. 3 of other size, and mark one embodiment of the present of invention.Reference numeral among Fig. 4 has gone out the various angles relevant with chuck wall 6, and Fig. 4 A has described various radiuss of curvature relevant with chuck wall 6, inner panel wall 16 and the various sizes relevant with it.For example, according to the radius of curvature R c2 on Fig. 4 A and the lower chuck wall 10,0.187 radius of curvature is limited at 2.120 inches distance.2.120 the size of inch is being represented from a position extension of beverage can end and is being passed the diameter that beverage can end arrives the corresponding position of circular beverage can end 2 opposite sides.Other size of in the accompanying drawing all has similar representative meaning.
Can find out that from Fig. 4 and 4A this later-model beverage can end has many distinguishing characteristicss, these distinguishing characteristicss are to describe according to the situation before being interconnected to beverage can body.More especially, in one embodiment, chuck wall 6 comprises upper chuck wall 8 and the lower chuck wall 10 that has different curvature radius separately.For example, the radius of curvature R c1 of upper chuck wall 8 is 0.080 inch in this special embodiment, and radius of curvature R c2 is 0.187 inch down.
In this special embodiment, the radius of curvature R c of chuck wall arch 30 is about 0.0404 inch.Shall also be noted that in addition center plate 14 is not more than about 0.090 inch apart from the height of countersink 12 foots, and the distance from the topmost of annular end wall 4 to countersink 12 foots is about 0.255 inch.In addition, in this special embodiment, the overall diameter of center plate 14 is not more than about 1.661 inches.
As shown in Figure 3, in case the beverage can end double-seam of Fig. 4 on beverage can body 24, the geometric configuration of upper chuck wall 8 is modified, but mark substantially keeps identical from the chuck bow portion 30 and the size of extending downwards among Fig. 4 and the 4A.In addition, for the purpose of reference, the radius of curvature of upper chuck wall is defined as " Rc1 " here, and the radius of curvature of lower chuck wall is shown as " Rc2 ".As is known to the person skilled in the art, the radius of curvature R c1 of upper chuck wall 8 and lower chuck wall 10 can perhaps can have small or moderate radius of curvature as changing shown in the other embodiment that discusses hereinafter respectively with Rc2 as describing in the accompanying drawing.
With reference now to Fig. 4 B and 4C,, two preferred embodiments of the present invention are provided here.More especially, in Fig. 4 B, the radius of curvature R c of chuck wall arch 30 is 0.025, and in Fig. 4 C, the radius of curvature R c of chuck wall arch is 0.020.These two embodiment have been found has fabulous double-seam and strength characteristics.
With reference now to Fig. 5,5A and 5B,, marked the embodiment of selection of the present invention here, wherein lower chuck wall 10 is linear substantially, and does not have tangible radius of curvature.Yet downwards and the radius of curvature R c of the chuck wall arch 30 of extending towards beverage can 26 be about 0.040 inch, and the radius of curvature R c1 of upper chuck wall 10 is about 0.080 inch.In addition, inner panel wall 16 is linear substantially in this special embodiment, and extends upward to depart between about 2 ° and 8 ° of the imaginary perpendicular and to be preferably 6 ° angle.In addition, upper chuck wall 8 has and is approximately 8-15 ° angle θ
1, and lower chuck wall 10 has the angle θ between about 20-35 °
2Although dawn equally can be to the use that changes of these chuck wall angles as known in the art.Fig. 5 B shows double-seam and arrives before the beverage can body and the embodiment of Fig. 5 afterwards.
With reference now to Fig. 6,6A and 6B,, provide another embodiment of the present invention here with different chuck wall 6 and inner panel wall 16 angles.In this special embodiment, basic is 6% angle φ for linear inner panel wall 16 has between about 0 and 8% and more especially
1In addition, chuck wall 6 comprises that upper chuck wall 8, lower chuck wall 10 and therebetween and radius of curvature R c are about 0.040 inch chuck wall arch 30.Lower chuck wall 10 have from diameter be 2.481 inches R point measure be approximately 0.375 inch radius of curvature R c2, and upper chuck wall 8 has 0.080 inch radius of curvature R c1 and center-point, and the diameter of this center-point is 2.210 inches as shown in the drawing.In addition, countersink 12 has from what annular end wall 4 topmosts began to measure and is approximately 0.238 inch total depth, and center plate 14 is positioned at from what countersink 12 foots began and is not more than about 0.090 inch height.
With reference now to Fig. 7,7A and 7B,, an alternative embodiment of the invention here is provided and the special angle of chuck wall 6, inner panel wall 16 is provided, also have the radius of curvature of upper chuck wall 8 and lower chuck wall 10 in addition.As institute's mark among Fig. 7, inner panel wall 16 extends upward with about 7 ° angle, and lower chuck wall 10 is with about 32 ° angle θ
1Extend downwards.Chuck wall arch 30 has and is approximately 0.040 inch radius of curvature R c, and lower chuck wall 10 has 0.375 inch the radius of curvature R c2 that measures at 2.455 inch diameter places, and upper chuck wall 8 to have at diameter be 0.080 inch the radius of curvature R c1 that 2.210 inches R point place is measured.In addition, the point of crossing between inner panel wall 16 and the center plate 14 has 0.015 inch the radius of curvature of measuring at 1.664 inches R point place of being approximately.Fig. 7 B show with the beverage can end double-seam before the beverage can body and the embodiment among Fig. 7 afterwards.
With reference now to Fig. 8-10A,, wherein provides the cross sectional front elevation of three kinds of different embodiment of the present invention.More especially, Fig. 8-8A has described the container end closures under the situation that outwards outstanding chuck wall arch 30 has 0.040 inch radius of curvature, and Fig. 9-9A to have described radius of curvature be 0.025 inch bow portion 30, and Figure 10-10A to have described radius of curvature be 0.020 inch outwards outstanding bow portion 30.
Describing as Fig. 8, is 0.040 inch stretching out during bow portion when using radius of curvature, and this radius is from the position of 0.071 inch of the upper limb of distance annular end wall 4.In this embodiment, and shown in Fig. 8 A, upper chuck wall 8 has 0.086 inch linear segment, and this is less than 0.098 inch double-seam length, and this part correspondence seam chuck linear wall portion 34.In test process, this end closure geometry is with the preferred embodiment of Fig. 9-9A and more preferably the preferred embodiment with Figure 10-10A is opposite, demonstrated stronger leakage self-association, and in Figure 10-10A, the linear segment of upper chuck wall 8 at least approximately is 0.098 inch the same long with the length of double-seam.
Therefore, shown in Fig. 9-9A, show radius of curvature and be 0.083 inch the bow portion 30 that stretches out, this bow portion use linear segment is 0.093 inch a seam chuck 28, and should bow portion 30 be shorter than 0.098 double-seam 32 slightly, this double-seam 32 produces by the interconnecting of annular end wall 4 of beverage can 26 with beverage can end closure 2.
With reference now to Figure 10-10A,, the preferred embodiments of the present invention shown here, the bow portion 30 that wherein stretches out has 0.020 inch radius of curvature, and is positioned at 0.086 inch place below annular end wall 4 upper limbs before double-seam.Shown in Figure 10 A, in this embodiment, use be that the length of linear segment 34 is 0.098 inch seam chuck 28, the double-seam equal in length of this and 0.098 inch.
According among the various embodiment discussed here each, and as Fig. 1-10A institute mark, on the basis of geometric construction, metal properties and relative specific standard thickness, can realize the improvement of strength characteristic of beverage can end and the minimizing of cost.More especially, metallic material generally includes aluminium, and comprises aluminum alloy and tempering thing for example 5182H19,5182H481 and 5182C515 more at large, and these are being known in the art.According to the thickness of these aluminum alloys, typically use the specification between about 0.0080 and 0.0095, and large diameter more beverage can needs big more thickness.Therefore, 202 beverage can ends can the aluminum of used thickness between 0.0080 and 0.0090 specification, and 206 beverage can ends can the aluminum alloy materials of used thickness between 0.0085 and 0.0095 specification.Therefore, in one embodiment of the invention, in 202 size aluminum beverage can ends with the geometric attribute that herein limits, the 5182H19 aluminum alloy materials of used thickness between about 0.0080 and 0.0085 specification can be saved cost significantly and actv. intensity is provided.
For clearer, the parts in the accompanying drawing and the tabulation of relevant drawings mark have been provided below.
Numbered block
2 container end closures
4 annular end walls
6 chuck walls
8 upper chuck wall
10 lower chuck wall
12 countersinks
14 center plates
16 inner panel wall
18 inner panel wall upper end
20 inner panel wall lower end
22 hats
24 container bodies
26 container necks
28 seam chucks
30 chuck wall arch
32 double-seams
34 seam chuck linear wall portions
36 seam chuck arcuate wall portions
The outer wooden partition of 38 countersinks
Rc chuck wall arch radius of curvature
Rc1 upper chuck wall radius of curvature
Rc2 lower chuck wall radius of curvature
θ
1The upper chuck wall angle
θ
2Lower chuck wall angle
φ
1Last inner panel wall angle
φ
2Following inner panel wall angle
Fwd of the present invention to be described and to be presented in order illustrating with illustration purpose.And the purpose of this description is not for the present invention being limited to form disclosed herein.Therefore, various modifications and the distortion of this being carried out according to top instruction and skill or relevant technological know-how also drops in the scope of the present invention.This civilian embodiment described above further is used for set forth implementing optimal mode of the present invention, and is used for making that other those skilled in the art can be according to this embodiment or other enforcement or in special applications or use that required various modification embodiment use the present invention when of the present invention.The application be intended that independent claims should be interpreted into the institute that comprises in the prior art tolerance level might embodiment.
Claims (22)
1. one kind is suitable for and the interconnective container end closures of container body, comprising:
Be suitable for and the interconnective annular end wall of described container body sidewall;
Chuck wall with described annular end wall overall interconnect, and this chuck wall extends downwards with the about at least 8 angle θ that spend that begin to measure from perpendicular, described chuck wall further comprises the bow portion that stretches out, and this bow portion that stretches out has the radius of curvature of center-point between about 0.020 and 0.080 inch under the described annular end wall;
With described chuck wall lower interconnect and radius of curvature less than about 0.015 inch countersink;
With the inner panel wall of described countersink interconnection, and this inner panel wall extends upward with about 0 degree that begins to measure from vertical substantially plane and the angle φ between 15 degree;
With the center plate of the upper end of described inner panel wall interconnection, and this center plate is positioned at about at least 0.080 inch place, described countersink foot top.
2. container end closures according to claim 1, wherein said center plate have from the about at least 0.150 inch degree of depth of the topmost of described annular end wall.
3. container end closures according to claim 1, the foot of wherein said chuck wall are linear substantially.
4. container end closures according to claim 1, the radius of curvature of the wherein said bow portion that stretches out is less than 0.040 inch.
5. container end closures according to claim 1, wherein said end closure is not more than about 0.0090 inch metallic material by thickness and makes.
6. container end closures according to claim 1, the part that interconnects of wherein said center plate and described inner panel wall has and is not more than about 0.015 inch radius of curvature.
7. container end closures according to claim 1, the diameter of wherein said center plate is less than about 75% of described annular end wall diameter.
8. container end closures according to claim 1, wherein said chuck wall comprise both sides that are arranged at the described bow portion that stretches out and upper chuck wall and the lower chuck wall with two different curvature radius.
9. container end closures according to claim 1, wherein said end closure is made by aluminum alloy.
10. container end closures according to claim 1, wherein said inner panel wall is non-linear.
11. container end closures according to claim 10, wherein said inner panel wall have at least one radius of curvature between about 0.030 inch and 0.070 inch.
12. a container end closures comprises:
Be suitable for and the interconnective annular end wall of container side wall;
With described annular end wall overall interconnect and the downward non-linear chuck wall that extends, described chuck wall comprises that radius of curvature is at least about 0.020 inch spill bow portion;
With the lower interconnect of the bottom of described chuck wall and inner panel wall and radius of curvature less than about 0.015 inch countersink; And
With the center plate of the upper end of described inner panel wall interconnection, and this center plate is positioned at described countersink foot top and is not more than about 0.090 inch place.
13. the non-linear lower chuck wall that container end closures according to claim 12, wherein said chuck wall further comprise the non-linear upper chuck wall that is positioned at described spill bow portion top and be positioned at described spill bow subordinate side.
14. container end closures according to claim 12, wherein said inner panel wall is non-linear.
15. container end closures according to claim 12, the diameter of wherein said center plate is less than about 75% of described annular end wall diameter.
16. container end closures according to claim 13, the radius of curvature of wherein said non-linear upper chuck wall are between about 0.070 and 0.090 inch, and the radius of curvature of described non-linear lower chuck wall is between about 0.170 and 0.300 inch.
17. one kind is suitable for and the interconnective can end closure of container body, comprises:
Be suitable for and the interconnective annular end wall of the sidewall of container body;
Be at least about 0.070 inch upper chuck wall portion with described annular end wall overall interconnect and radius of curvature;
Be at least about 0.015 inch spill bow portion with described upper chuck wall overall interconnect and radius of curvature;
Be at least about 0.150 inch lower chuck wall portion with described spill bow portion's overall interconnect and radius of curvature;
In first end and described lower chuck wall portion and at the countersink of the lower end of second end and inner panel wall overall interconnect, described inner panel wall is with the angle φ between about 0-4 degree
1Extend upward; And
With the center plate of the upper end of described inner panel wall interconnection, the foot top distance that described center plate is positioned at described countersink is not more than 0.090 inch place.
18. can end closure according to claim 17, the described inner panel wall of wherein said countersink and described outer wooden partition are opened to be not more than about 0.054 inch separating distance.
19. can end closure according to claim 17, wherein said upper chuck wall and described lower chuck wall be to interior orientation, and described spill bow portion is outwards directed towards described container body.
20. one kind is suitable for and the interconnective end closure of container body, comprises:
Annular end wall;
With described annular end wall overall interconnect and the downward therefrom arc chuck wall that extends;
Outwards outstanding spill bow portion between described chuck wall top and bottom, and the radius of curvature of this spill bow portion is between about 0.015 and 0.030 inch;
In the lower end of first end and described chuck wall and at the annular countersink of second end and center plate overall interconnect, described center plate has the basic central axis parallel with container body.
21. end closure according to claim 20, wherein said countersink comprise to be not more than inner panel wall and the outer wooden partition that about 0.054 inch separating distance is opened.
22. being positioned at described countersink foot top, end closure according to claim 20, wherein said center plate be not more than 0.090 inch place.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/456,345 US6499622B1 (en) | 1999-12-08 | 1999-12-08 | Can lid closure and method of joining a can lid closure to a can body |
| US09/724,637 US6561004B1 (en) | 1999-12-08 | 2000-11-28 | Can lid closure and method of joining a can lid closure to a can body |
| US34728202P | 2002-01-10 | 2002-01-10 | |
| US60/347,282 | 2002-01-10 | ||
| US10/153,364 | 2002-05-22 | ||
| US10/153,364 US6702142B2 (en) | 1999-12-08 | 2002-05-22 | Can lid closure and method of joining a can lid closure to a can body |
| PCT/US2003/000799 WO2003059764A1 (en) | 1999-12-08 | 2003-01-10 | Metallic beverage can end with improved chuck wall and countersink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1639016A true CN1639016A (en) | 2005-07-13 |
| CN1319813C CN1319813C (en) | 2007-06-06 |
Family
ID=27496092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038044994A Expired - Fee Related CN1319813C (en) | 1999-12-08 | 2003-01-10 | Metallic beverage can end with improved chuck wall and countersink |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7100789B2 (en) |
| EP (2) | EP1470052B1 (en) |
| JP (1) | JP4388817B2 (en) |
| CN (1) | CN1319813C (en) |
| AU (1) | AU2003207518B2 (en) |
| BR (1) | BR0306682B1 (en) |
| CA (1) | CA2472295C (en) |
| MX (1) | MXPA04006730A (en) |
| WO (1) | WO2003059764A1 (en) |
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-
2003
- 2003-01-10 MX MXPA04006730A patent/MXPA04006730A/en active IP Right Grant
- 2003-01-10 AU AU2003207518A patent/AU2003207518B2/en not_active Ceased
- 2003-01-10 US US10/340,535 patent/US7100789B2/en not_active Expired - Lifetime
- 2003-01-10 EP EP03705729A patent/EP1470052B1/en not_active Revoked
- 2003-01-10 BR BRPI0306682-7A patent/BR0306682B1/en not_active IP Right Cessation
- 2003-01-10 CA CA2472295A patent/CA2472295C/en not_active Expired - Fee Related
- 2003-01-10 EP EP12170357A patent/EP2497717A1/en not_active Ceased
- 2003-01-10 CN CNB038044994A patent/CN1319813C/en not_active Expired - Fee Related
- 2003-01-10 JP JP2003559886A patent/JP4388817B2/en not_active Expired - Fee Related
- 2003-01-10 WO PCT/US2003/000799 patent/WO2003059764A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103282138A (en) * | 2010-11-18 | 2013-09-04 | 鲍尔公司 | Metallic beverage can end closure with offset countersink |
| CN105408216A (en) * | 2013-05-31 | 2016-03-16 | 皇冠包装技术公司 | Beverage can end having arcuate panel wall and curved transition wall |
| CN105408216B (en) * | 2013-05-31 | 2018-03-23 | 皇冠包装技术公司 | Beverage can cover with arch panel wall and curve transition wall |
| WO2018161517A1 (en) * | 2017-03-07 | 2018-09-13 | 苏州斯莱克精密设备股份有限公司 | Pressure-resistant basic lid, pop tab, and beverage can having pop tab |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2497717A1 (en) | 2012-09-12 |
| EP1470052B1 (en) | 2012-09-19 |
| EP1470052A4 (en) | 2009-03-04 |
| BR0306682A (en) | 2005-02-22 |
| AU2003207518B2 (en) | 2008-12-04 |
| US7100789B2 (en) | 2006-09-05 |
| JP4388817B2 (en) | 2009-12-24 |
| AU2003207518A1 (en) | 2003-07-30 |
| BR0306682B1 (en) | 2014-12-02 |
| EP1470052A1 (en) | 2004-10-27 |
| JP2005515120A (en) | 2005-05-26 |
| WO2003059764A1 (en) | 2003-07-24 |
| US20030173367A1 (en) | 2003-09-18 |
| CA2472295C (en) | 2011-11-29 |
| MXPA04006730A (en) | 2005-03-31 |
| WO2003059764A9 (en) | 2004-04-22 |
| CA2472295A1 (en) | 2003-07-24 |
| CN1319813C (en) | 2007-06-06 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20070606 Termination date: 20200110 |